Accueil


ENCRES pour IMPRIMANTES et PLOTTERS

     HOW TO USE OUR INKJET INKS

   Ink replacement
   Using our solvent inks

 

   Inkjet inks designed for wide format plotters have got different physical and chemical properties.  It is obvious that is forbidden to use solvent based inks in plotters build for water based inks (and vice versa).

   Moreover, different inkjet inks are used in plotters with piezoelectric or thermic print head, respectively. It follows from the fact that there are two main print head technologies on the market, one that produces drops of ink continuously and one that produces drops on demand. The drop-on-demand print head design can be categorized into four methods: piezoelectric, thermal, acoustic and electrostatic.

   It is worth to note, that careless using of appropriate ink in an inkjet plotter, even designed for this kind of ink, can cause a lot of problems.  If, for example, careless user after  printing with water based ink will not clean  plotter's printing system with cleaning flush, and begin to print using pigmented ink, the print heads can be clogged.

   Similar problems can appear when user is changing one kind of solvent ink into the other. When the printing system of plotter is not carefully clean from an "old" ink, can take place chemical reaction  between different solvents which are main component of every solvent ink.

 

We recommend to comply with the following instructions:

Ink replacement

  1. Clean up deeply a previous ink with the adapted solvent cleaning flush from the same ink producer. For example, if one is changing original OEM* ink onto our compatible ink, first it is necessary to clean full ink delivering system with a cleaning flush from the same OEM* firm.

  2. Next, user have to clean one more time the full ink system with our cleaning flush.

  3. After mentioned above preparatory action user can start to print (one is certain that will not take place chemical reaction between a "new" ink and remains of an inappropriate cleaning flush).

  4. The similar procedure (point 1 and 2) is indispensable if user is changing one kind of compatible ink onto the other.

Using our solvent inks

  1. Clean up deeply a previous ink with the adapted solvent cleaning flush from the same ink producer. For example, if one is changing original OEM* ink onto our compatible ink, first it is necessary to clean full ink delivering system with a cleaning flush from the same OEM* firm.

  2. Next, user have to clean one more time the full ink system with our cleaning flush.

  3. After printing, clean the head

  4. The sponge on the parking should be every time moistened by the solvent cleaning flush

  5. Temperature should be about 20C

  6. Humidity in the range from 35% to 50%

  7. Assign one kind of ink to the plotter: solvent or water based

  8. Use only a very good bulk ink system, 95% of all problems are coming from a bad one. Pay attention that a bad bulk ink system can destroy the print head in a few seconds

  9. If you fill a 220 ml aluminum bag try to avoid filling it up to much; 200 ml or 210 ml is enough. Even with a very good bulk ink system avoid the pressure variation which are responsible for a lot of bad printouts and can also shorten a life of the plotter print head

  10. Use only PP solvent resistant aluminum bag or bag  made from rubber. A standard PE aluminum bag can be dissolved by solvent included in the ink and it can clog a filter or a print head

  11. Because of similar reason, use only the solvent resistant bulk ink system with teflon tubes

  12. A bag or bulk ink system should be refilled in a very clean room with closed doors and all windows, without draft, using clean hands and in clean clothes

  13. When using the first time solvent ink in a water based ink system it is absolutely necessary to check whether the cleaning was perfect. First bad printout have got at 99% origin in the presence of old dry ink in a pipe, filter or print head. Thus, the best solution is to use a new ink distribution system

  14. Stock ink in a normal environment out of light, at room temperature in the range from 10C to 20C.

  15. When using a heater pay attention that the heat flux is not going directly on the ink distribution system

  16. Printing on uncoated plastic media: for some of them it is necessary to use heater giving 35C localized in the entrance to plotter/printer.

          *OEM = Original Equipment Manufacturer

Aller en haut de page